Simulating an arbitrary number of flavors of dynamical overlap fermions

Abstract

We present a set of related Hybrid Monte Carlo methods to simulate an arbitrary number of dynamical overlap fermions. Each fermion is represented by a chiral pseudo-fermion field. The new algorithm reduces critical slowing down in the chiral limit and for sectors of nontrivial topology.

Comments: 16 pages, 7 figures. Version to be published in JHEP: added some clarifying text, corrected description of reweighting